Exploratory investigation of transpiration cooling of a 40À double wedge using nitrogen and helium as coolants at stagnation temperatures of 1,295À to 2,910À F /
by Bernard Rashis.

Description

Main Author

Rashis, Bernard.

Related Names

United States. National Advisory Committee for Aeronautics.
Langley Aeronautical Laboratory.

Language(s)

English

Published

Washington, D.C. : NACA, 1957.

Subjects

Aerodynamics > Aerodynamics / Research.
Transpiration (Physics)

Summary

Abstract: The results presented herein were obtained in a transpiration cooling investigation of a double wedge of 40À included angle having a porous stainless-steel specimen inserted flush with the top surface of the wedge. Nitrogen and helium were used as coolants, and tests were conducted for stagnation temperatures ranging from 1,295À to 2,910À F. The data for both the nitrogen and helium coolants indicated greater cooling effectiveness than predicted by theory and were in good agreement with the results for an 8À cone tested at a stagnation temperature of 600À F.

Note

"Classification changed to unclassified Authority: NASA Technical Publications Announcements No. 11 Effective date: December 1, 1959 WHL."--Stamped on front cover
"Report date August 1, 1957."
Also available in electronic format.

Physical Description

18 p. : ill. ; 28 cm.

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